Shearing machine



NOV- 9, 1948. G AH M ET AL 2,453,216

' SHEARING MACHINE Filed April 8, 1947 5 Sheets$heet 1 Fig. I.

II I II II I Inventor 45 Van 8. Graham Kenneth E. Graham WWW 1943- v. B. GRAHAM ET AL 2,453,216

I SHEARING MACHINE Filed April 8, 1947 5 Sheets-Sheet 2 Inventor Von B. Graham Kenneth E. Graham 1948- v. B. GRAHAM ET AL 2,

SHEARING MACHINE Filed April 8, 1947 g 5 Sheets-Sheef 5 Fig. 7. Fig. 8.

v I I I I ll 24 lee 26 60 2 72 I8 L \f\ N Fig.9

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\ Von B. Graham Kenneth E. Graham Patented Nov. 9, 1948 STATES g1:

1 "This invenigi on l ela tes s61 .improvemepts. in dee? q e he r n nrq kfli se ma erials l1 )b ,ije t, pi this. inyerltion is to .ptevide. im

H .qtrb e lp wfi is i ve n i t mv mggmsgto re a ifentlybia six g said shearing. means. A Iu lfthfflfiflbjgCt. f thisv invention j s.to provide cam actuated lockli g me'an s,' fqr, securing said neezing. ean :-P .$1 ?1m .fi-Q P s io mbs? 1 pm l venfi nme 'ns fin 3; kmemeepmh m Wipi h Y 9. hi hviq lew fih p lhsa p fiiw erw t em be iobj ec cf ph is inyepgiongisit ol provide az i eii tg-egp ly pill gt .deyice l f thev character x1e;- scribed w'hlch'is capable of s'hearipg stqnes in pre wed-l nes with su s nfia l l no. a

killed in th arft, 1mm

' e-zi q' fii i .i' i b el e l ttii in -r s; -l v Figure- 5 is, g; perspective vviewvl of a preferred 13 993 1 v wil .mti n with efp is a perspectiYe, view of the cam shaft,

utilize the 'px esentiinye'mgign;

Fig pje fis 'd se c fiio'nail enlar ed detail of construction-showing a portion of {she blade means fcirining"part dLthe present-invention;

Figure- 8 is :an' enlarged fragmentary detail of construction ash-owing primarily a portion oi-thebank of blades utilized in thegpz'zesentinvention;v

Figm e. ,9 is e. lopgij-Ag dlpal1 sectional view- 0f the fitxu on $119 in Fi me' a ken; '7 W 4%. i l fiz gi a nite sheg i ngfl aridj-th e like} ii ei awm i t heP -SW RY 11 erg imprgyedn bla d ie constru wrs m b aew emfime fi h se em mh sb e n rle Mhenar ed M116 s -e lmiq qwine po tiemrl x se.ating spripgsflj iglipe i n. It i will belntitedffrpzf i I n i epeqt e imme.1 i 'e ilzx es ece t ql s Ha e p ev ded 1 We l? un s.. sdse it-he 'aid s slememker m 'murq ifiw .Urib ts e' i eq ehl a ied. ntervalsl n thwi ei we? 9. membe 6 split bearings "30 are interposed between ampsen l qs d ember l Brack e i be ewfi lla gt ist me.

bladeerchislid'fl'h-aeipggplitgb eregcel at; ne nqwtheneq g. efin n mart i ar yptq iii 5 we v h plosed a we; her-1t 45, xinea y,' ...;i ce zl hssj-fi e-nh onm' zea m, e m leq i hel ais .snlitrb aeie l cam shaft at selected intervals along fhe axisv tor handles thereon. In operation the slide member 58 is rested on the stone to be sheared. The

blades (ill are permitted to follow the detent and protuberances of the said stone. .flhen, the .actuator handles 58 are pulled, turning the cam shaftand urging the lobe thereof against thetie hart iii. This, in turn, clamps the chisels or' blades l against the flat surface of the slide member. l3,

holding the said blades.;-in a predetermined fixed position, corresponding to the contour. of the stone. After'the stone is sheared, the handles are actuated in areverse direction in order that the protuberance 118 may engage the right angul ar member 33. This, in turn, urges the c'hisels 4diupwardly against the force of the springs 26. Thus, the releasing operation is effected. In order to" guide thejsaid chisels further and to retainthe springs 26 in thedesired relative posiiion, a reduced'shank 6% is provided on each of the-said chisels 43 for the purpose of sliding in and out of the receptacle 2d;

' Itli's noted at this point that an identical construction" of chisels' and actuating mechanism therefor, including locking means and resilient biasing means, is provided on the lower stationary, cross member 22. In fact, the lower chisels andupper chisels-ccoperate following the general contour of the upper and lowersurfaces of the stone to be cut. Since the lower chisel construction is identical to the upper construction, adetailed description is deemed unnecessary.

Reference is now made to Figures '7 to 9, inelusive, wherein a slight modification of the in-- ventive conceptis disclosed. It is seen that a pair of'brackets 'lll are secured to the slide plate- !8 Tfand a platform l2 is secured between said bracketsfA plurality of fluid actuated pistons i are mounted on said platform and a bar it is secured to the terminal portion of 'each of the pis ton rods used in conjunction therewith. This bar 16 engages the'chisels or blades 40 for the purpose ofreta'ining the same in the desired adjusted position. Fluid pressure may be. applied from any conventional exterior source and conducted through the conduit 13 to each of the said piston construction it. This, construction described above, takes the place of the cam locking means describedin .the first embodiment of the present invention.

. The angle iron actuator 38 is rigidly secured to the shaft 80 and a handle means 82 is associated therewith for the purpose of actuating said actuator member 38. Any-suitable means may be employedfor journaling the said shaft 80 such as a pair of brackets 85 which are secured to the slide member 18. The operation of the chisel rocks contour following features of this embodiment of the present invention are identical to those features' described hereinabove. 7

While there has been illustrated and described preferred embodiments of the present invention capableof performing all of the specifically men tioned objects as well as ancillary objects, it is apparent to those skilled in the art that various i shaft journaled" in 'said' slide-"members engage-" for'lockin'g and lifting said blades, finc'lud' I s'aid cam shaft"to 'saidiprotuberanc s durin changes includin omissions and additions may be made herein without departing from the spirit of the invention. Accordingly, limitation is sought only in accordance with the scope of the following claims.

Having thus described the present invention,

what is claimed as novel and improved is as fole lows: v l. Ina device for shearing stone, a frame, slide members secured to said frameflbladesf slidably secured to said slide members, means for resiliently biasing each of said blades, means for locking said blades in predetermined fixed positions, means'for actuating said locking means, means for lifting said blades, said lifting means and said locking means including a common cam shaft en gageable with said blades.

2. In a device for shearing stone, a frame, slide members secured to said frame, blades slidably secured to said slide members, means for resiliently, biasi ng each of saidblades, means for, locking said blades in predetermined fixed, positions, means for actuating said locking means, said resilient biasing means including springs'bearing on selected tie members and saidiblades, said',lolck ing means comprising rods having ellipsoidal crosssections iournaledon said slide members. I

3.'Tl1e construction recited in claim 2, said loekingmeans actuating means comprising handles egztending frornsaid rods. 1 .f

l. Ashearing apparatus comprising a frame, slide members secured to saidfraina b'ladeshaving protuberances thereon, secured: togsaid' slide members, means for locking and lifting said blades in fixed positions, means for" actuating said locking means, said locking means including cam rods 1 urnaled in said slidemembers en'gageable with said blades. a

5. A shearing apparatus comprising a frame, slide. members secured to said frame, blades hav ing protuberancesthereon secured to sai'd' slide members, means for lockin and lifting said? blades infixed positiongmeans for actuating said locking means, said locking means'inclu'ding cam rods journaled in said slide'mernbers engageable With'said blades means for engaging said protuberancejsfmeans associated withjsaidfcalm rods for lifting said engaging means. I I 6. A shearing apparatuscomprising aQframe, slide members secured t'o'saidframe, blades hay; ing p-rotuberances thereon secured to said lide' member :mean's .f 9k ng S l-1S blades in fixed positions, 'mean's "forf, "ctua ing. said locking means saidlocking.meansjin eluding cam rods journaled in saidslidememb'ers engageable with said blades, mean' s for 'jengaging said protuberances, line ans associated vvith said cam rods for lifting saidengaging spring means, engaging said blades for normally biasing said blades on the surfaces of stone.

-7.. Ina shearing apparatus,aframefslide members secured to said frame, blades slidablysser-l cured to said slide members common meansfor locking and lifting said blades; includinga c'aJm able with said-blades. I v

8; In a shearing apparatus, a frame, slide' members secure'dto said frameyblade s -slidably secured to said slide members, common'i'riea'ns an h t i a d. in aid sl wer gageabie with's'ai'd blades, protuberances' V 7 blades, means for transmitting movement fro predetermined portion of the cycle of operation thereof.

9. In a shearing apparatus, a frame, slide members secured to said frame, blades slidably secured to said Slide members, common means for locking and lifting said blades, including a cam shaft journaled in said slide members engage- .able with said blades, protuberances on said blades, means for transmitting movement from said cam shaft to said protuberances during a predetermined portion of the cycle of operation thereof, said transmitting means including a second protuberance on said cam shaft, and pivotal means for connecting said protuberances and said second protuberance.

10. In a shearing apparatus, a frame, slide members secured to said frame, blades slidably secured to said slide members, common means for locking and lifting said blades, including a cam shaft journaled in said slide members engageable with said blades, protuberances on said blades, means for transmitting movement from said cam shaft to said protuberances during a predetermined portion of the cycle of operation thereof, means for resiliently urging said blades in operative engagement with stones supported in said frame.

11. In a shearing apparatus, a frame, slide members secured to said frame, blades slidably secured to said slide members, common means for locking and lifting said blades, including a cam shaft journaled in said slide members engageab le with said blades, protuberances on said blades, means for transmitting movement from said cam shaft to said protuberances during a predetermined portion of the cycle of operation thereof, said transmitting means including a second protuberance on said cam shaft, and pivotal means for connecting said protuberances and said 6 second protuberance, spring means associated with said blades for resiliently biasing said blades to selected operative positions.

12. In a shearing apparatus, a frame, slide members securedto said frame, blades slidably secured to said slide members, common means for locking and lifting said blades, including a cam shaft journaled in said slide members engageable with said blades, protuberances on said blades, means for transmitting movement from said cam shaft to said protuberances during a predetermined portion of the cycle of operation thereof, means for actuating said cam shaft.

13. In a shearing apparatus, a, frame, slide members secured to said frame, blades slidably secured to said slide members, common means for locking and lifting said blades, including a cam shaft journaled in said slide members engageable with said blades, protuberances on said blades, means for transmitting movement from said cam shaft to said protuberances during a predetermined portion of the cycle of operation thereof, said transmitting means including a second protuberance on said cam shaft, and pivotal means for connecting said protuberances and said second protuberance, and means for rotating said cam shaft.

VON B. GRAHAM. KENNETH E. GRAHAM.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 156,274 Brooks Oct. 27, 1874 247,569 Maxim Sept. 2'7, 1881 2,152,193 Johanning Mar. 28, 1939 

